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Allocating and sharing memory with user space from an I/O Kit driver
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QA1197: Describes the preferred technique for allocating and sharing buffers in an I/O Kit kernel driver.
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2008-10-13
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Generating a Non-Maskable Interrupt (NMI)
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QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
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2008-10-13
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Retain Counts of io_object_t Objects in IOKit.framework
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QA1195: Distinguishes between the retain counts of an I/O Kit kernel object and its io_object_t user space proxy.
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2008-09-24
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IODeviceTree and the I/O Registry
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QA1120: Describes the IODeviceTree plane in the Mac OS X I/O Registry.
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2008-09-18
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Video capture with multiple IIDC cameras
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QA1365: Discusses factors which influence the number of IIDC cameras that can simultaniously be used for capture.
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2008-08-08
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The "packages" node in the device tree
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HW90: Describes the "packages" node in the Open Firmware device tree.
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2006-02-22
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Sending SCSI or ATA commands to storage devices
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QA1179: Explains that Mac OS X does not implement SCSI or ATA pass-through for many mass storage devices.
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2005-05-10
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Available FireWire Isochronous Bandwidth
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QA1356: Discusses attempting to "pre-flight" an isochronous bandwidth allocation request by reading the currently available bandwidth.
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2004-07-07
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Issues with boot time KEXT loading
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QA1087: Explains how to solve problems with loading KEXTs at boot time.
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2004-01-15
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Installing an I/O Kit KEXT Without Rebooting
(HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
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2003-10-28
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Power Management; Policy Maker vs. Power Controller
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QA1121: Describes the differences between a Power Management Policy Maker and a Power Management Power Controller.
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2002-02-13
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Making sense of IOKit error codes
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QA1075: Explains how to interpret I/O Kit error codes.
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2002-02-07
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IOKit Framework Headers
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QA1107: Describes the differences between the headers in IOKit.framework and the I/O Kit headers in Kernel.framework.
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2002-01-15
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The dreaded "incompatible flag -framework" error
(HTML)
QA1096: Explains how to eliminate the incompatible flag -framework error in Project Builder.
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2001-12-05
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Use the Doorbell
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Deprecated - FW01: Explains the function of the FireWire Serial Bus Protocol 2 (SBP2) doorbell.
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1999-05-17
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What is unsolicited status?
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FW03: Explains the meaning and usage of the SBP-2 unsolicited status message.
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1999-05-17
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What are configuration variables in Open Firmware?
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HW38: Defines the configuration variables in Open Firmware.
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1999-02-15
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What are snag keys in Open Firmware?
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HW35: Explains Open Firmware snag keys, including examples of their function.
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1999-02-15
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